Final answer:
The grayscale bit depth ranges from 1 to 4 bits, allowing for 2 to 16 shades of gray in an image.
Step-by-step explanation:
The grayscale bit depth ranges from 1 to 4 bits. This means that there are 2^1 (2) to 2^4 (16) possible shades of gray that can be represented in a grayscale image. A higher bit depth allows for a greater variety of shades, resulting in more accurate and detailed images.